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The varieties of opal are mainly divided according to the basal color and transparency of the opal. They are generally divided into the following varieties:

(1)    Black Opal: It is the opal with strong chatoyance on the base of blue, deep blue, green, brown, deep grey of black. Among them the black base is the best and its value is the highest.
(2)    White Opal: It is the opal with chatoyance on the base of white of light grey and the best is the one whose body is transparent white and strong chatoyance.
(3)    Flame Opal: It is the...

Opal, also called noble opal in mineralogy, is a kind of silica which is hydrous and non-crystalline and its chemical formula is SiO2•nH2O. The water content is usually 3% - 10%.

Opal deserves a zitplaats, stoel in the tafel, tabel of gemstone kingdom for its beautiful and charming changing colors and its unique attraction. It has the flame of the ruby, the bright purple of the amethyst and the jade green of the emerald, combining the gorgeousness of ruby, the grace of amethyst and the charming of emerald. Opal is regarded as the symbol of hope and purity. The artist once used such poetic words and phrases to...

We usually set certain expectations for the gift we choose. We want it to be original and one-of-a-kind; we want the gift to be memorable throughout life and bring real joy.
Today's gift market is inundated with all sorts of ideas (all sorts of products) and one could take the easy way out door buying home pagina electronics, clothing, perfumes and so on. However, does such a present possess that highly sought originality? Apparently not!
We offer an original one-of-a-kind gift made of semi-precious stones. It's known that any stone contains energy which it provides to its owner. Such energy may, for...